Agricultural waste burning is an inefficient chemical process; it emits different atmospheric pollutants with implications on health and global warming. Particulate matter, organic carbon aerosols (OC), carbon monoxide (CO), nitric oxide (NO) and hydrocarbons polycyclic aromatics (HPAs) have been related to damages to health and carbon dioxide (CO2), methane (CH4) and black carbon aerosols (BC), with global warming since they induce a positive radiative forcing. Based on these assessments, the objective of this research was to determine emission factors (EF) of particulate matter: HPAs, OC, CN, CO, CO2, NO y CH4 from the burning of waste from sugarcane, corn, rice, sorghum and wheat to relate their physicochemical characteristics with emissions and combustion characteristics, for this, two methodologies were used: the first one used a closed combustion chamber 3CE, installed in the Universidad Federico Santa María, Chile, and in the second, an open combustion chamber designed and built in the Universidad Autónoma Metropolitana (UAM), Azcapotzalco, México.